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STA 121 Descriptive Statistics II

ND1 levelSciences29 topics

STA 121 covers 29 topics. StudyPath paces them into daily study sessions that finish before your exam date, with practice questions and worked answers for each one.

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Course outline

The topics this course covers, in teaching order.

  1. Measures of central tendency
  2. Mean, median and mode
  3. Arithmetic mean properties
  4. Assumed mean and coding methods
  5. Harmonic and geometric mean
  6. Graphical estimation of median and mode
  7. Positional measures
  8. Quartiles, deciles and percentiles
  9. Measures of variability
  10. Variance and standard deviation
  11. Relative measures of variability
  12. Moments
  13. Skewness and kurtosis
  14. Concentration ratio
  15. Time series
  16. Time series concept and examples
  17. Graphing time series data
  18. Components of time series
  19. Linear trend interpretation
  20. Moving averages
  21. Seasonal variation removal
  22. Seasonal index by moving averages
  23. Computation and interpretation of time series parameters
  24. Index numbers concept
  25. Types of index numbers
  26. Uses of index numbers
  27. Construction of simple and weighted index numbers
  28. Paasche, Laspeyres and Fisher’s ideal indices
  29. Weighted averages using real-life data

A sample from this course

One topic, as StudyPath teaches it.

Measures of central tendency

Measures of central tendency are numerical values that describe the centre or typical value of a set of data. For examination purposes, you must master the mean, median and mode, know how to calculate each correctly, and know when one measure is more appropriate than another in social research.

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